Lamp-reflector.



No. 642,529. Patented Jan. 30, I900.

- F. numn.

LAMP REFLECTOR.

(Application filed Sept. 2, 1899.)

(No Model.)

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UNITED STATES 1 PATENT OFFICE.

FRANK Rump, on BRIDGEPORT, CONNECTICUT, ASSIGNOR OF ONE-HALF TO THE BRIDGEPORT BRASS COMPANY, or SAME'PLAOE.

srEcIFI'oATIoN forming part of Letters Patent No. 642,529, dated January so, 1906.

Application filed September 2, 1899. Serial No. 729,308. (No model.)

The accompanying drawing represents the upper part of a gas cycle-lamp embodying my invention.

I have not deemed it necessary to illustrate the body or gas-generating portion, as that may be of any desired construction.

1 designates a gas-tube; 2, a burner-tip;,3, a reflector provided with recess 31 and hood 32, and 4 a dress-guard.

In the example of my invention illustrated the gas-tube 1 is bent or formed to support a horizon tally-disposed burner-tip 2. The tube 1 also supports a reflector 3, which, as shown, is of conical form. At the rear end of the reflector 3 is a recess or portion of reduced diameter 31, shown as integral with the reflector-bod y. At the free open end of the reflector isa projecting hood 32. Detachably engaging with the front edge of the reflector 3 is a jdress-guard 4, shown as of wire, cruciform and extending for some distance in front of the open mouth of the reflector.

The operation of my devicewill be readily understood from an inspection of the drawing. It is clear that with a concave open-front reflector surrounding a burner which projects a flame substantially along its axis a very large percentage of the light will be thrown forward. By making the body of the reflector of the conical shape shown in connection with a cylindric axial flame a great part of these rays will be contracted into a long relatively narrow path which is precisely suited to the use of a cycle-rider. In fact, itis found that a long cylindric flame in a conical reflector produces almost the long cylinder of lightrays that is projected by a very small flame at the focus of a parabola.

The addition of a hood at the front end of the reflector, the hood being substantially cylindric and cut awayat its lower side, serves to somewhatincrease the illumination of the road immediately in front of the rider with out noticeably lessening the forwardly-projected shaft of light. The chief function of the hood, however, is to protect the eyes of the rider from the blinding eflect of the long axially-projected tongue of flame which is caused by an occasional excess flow of water to the carbid. By providing a reflector either of the conical form shown or of any concave form with the rearwardly-extending recess 31, in which the burner-tip 2 is placed, I am enabled to protect and reflect a longer flame than if the burner-tip projected forward into the bodyof the reflector itself. Another great advantage of this construction is the absence of any shadow of the tip. The chief benefit, however, derived from the recess is the great decrease in the likelihood of the flame being extinguished by the wind. When the root of the flame is within the body of the reflector, it is quite easily separated from the burnertip. When, however, it is within the smaller circumference of the recessed portion, it is found to be much more tenacious.

Where an acetylene-lamp is subjected to severe jolting, a sudden influx of water to the carbid may occasionally occur. This of course causes an immediate and considerable increase in the size of the flame, With a burner having a single orifice and with the open front reflector of my device a long tongue of flame thus caused may reach beyond the mouth of the reflector.

When the lamp is used attached to a carriage-seat, there is danger of accident to the hand or clothing. To obviate this, I provide a guard 4, shown as of wire and snapped on the beaded edge of the reflector. This guard prevents any article or body getting so near to the open mouth of the reflector as to be injured, while it does not noticeably interfere 5 with the light-rays. It is preferable that this guard should be easily removable to facilitate the cleaning of the reflecting-surfaces.

I am aware that many' mechanical alterations may be made in my device without de- 2 (Mateo parting from my invention and that parts thereof may be used in other combinations than those shown.

What I claim is 1. In combination an open-front concave reflector having at its rear end a recess or portion of reduced diameter and a burner within said recess and adapted to project a flame substantially in an axial line with said reflector.

2. In combination an open-front reflector of substantially conical form having at its rear end a recess or portion of reduced diameter and a burner within said recess and adapted to project a flame substantiallyin an axial line with said reflector.

3. In combination an open-front concave reflector having at its open end a hood or extended portion of greater length at its upper than at its lower side and a burner at the rear end of said reflector and adapted to project a flame forwardly therefrom in a line substantially coincident with the axis of said reflector.

4. In combination an open-front reflector of substantially conical form having at its open end ahood or extended portion of greater length at its upper than at its lower side and a burner at the rear end of' said reflector and adapted to project a flame forwardly therefrom in a line substantially coincident with the axis of said reflector.

5. In combination an open-front concave reflector having at its open end a hood or extended portion of greater length at its upper than at its lower side and at its rear end a recess or portion of reduced diameter and a burner within said recess and adapted to project a flame substantially in an axial line with said reflector.

6. In combination an open-front reflector of substantially conical form having at its open end a hood or extended portion of greater length atits upper than at its lower side and at its rear end a recess or portion of reduced diameter and a burner within said recess and adapted to project a flame substan tiall y in an axial line with said reflector.

FRANK RIIIND.

Witnesses:

GEO. L. COOPER, NETTIE S. WELLS. 

